In this chapter, students will explore relationships between air quality and population density using the image visualization tool, Google Earth. You will learn how to download NO2 data and analyze them to develop a conceptual understanding of how...(View More) population and topography can influence the air quality of a region. Once you have learned the techniques, you are encouraged to explore seasonal changes in nitrogen dioxide concentrations at other locations. This chapter is part of the Earth Exploration Toolbook (EET). Each EET chapter provides teachers and/or students with direct practice for using scientific tools to analyze Earth science data. Students should begin on the Case Study page.(View Less)

This tutorial on cloud types was designed for participants in the S'COOL project (Student Cloud Observations On-Line). S'COOL engages students in making and reporting ground truth observations of clouds then comparing those observations with data...(View More) from the CERES satellite instrument. As part of those observations, students must collect data on cloud types and cloud levels. The images and text/oral descriptions of each cloud type by altitude will allow students to more accurately collect ground truth data. In addition, the descriptions often include historical background, name derivatives and other relevant information.(View Less)